Treatments: Almost all Emeralds are treated to improve color and durability. Assume that any Emerald you see is treated. I personally do not agree with a lot of the Treatments used on Emeralds. Here is an article on Emerald treatments and my opinion on them.

What I prefer to polishing with: Cerium oxide with a Spectra Ultralap.

Jeff’s Comments: I seldom cut Emeralds, most of the rough is low quality in my opinion and I do not like to cut oiled, or opticoned rough. If you want to cut some for the color, I suggest cutting man-made Emerald.

Design Notes: Mostly Emerald cuts and step cuts because the crystals are usually small long and narrow.

Design Links: Signature #4 – This is one of my favorite cuts in BerylBlue Ice – Designed for very long crystals